Re: [PATCH 3/5] drm/panel: get/put panel reference in drm_panel_add/remove()

From: kernel test robot
Date: Wed Mar 26 2025 - 00:35:56 EST


Hi Anusha,

kernel test robot noticed the following build errors:

[auto build test ERROR on c8ba07caaecc622a9922cda49f24790821af8a71]

url: https://github.com/intel-lab-lkp/linux/commits/Anusha-Srivatsa/drm-panel-Add-new-helpers-for-refcounted-panel-allocatons/20250326-012651
base: c8ba07caaecc622a9922cda49f24790821af8a71
patch link: https://lore.kernel.org/r/20250325-b4-panel-refcounting-v1-3-4e2bf5d19c5d%40redhat.com
patch subject: [PATCH 3/5] drm/panel: get/put panel reference in drm_panel_add/remove()
config: hexagon-randconfig-002-20250326 (https://download.01.org/0day-ci/archive/20250326/202503261119.h0EEYLFA-lkp@xxxxxxxxx/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project c2692afc0a92cd5da140dfcdfff7818a5b8ce997)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250326/202503261119.h0EEYLFA-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503261119.h0EEYLFA-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: drm_panel_get
>>> referenced by drm_panel.c:82 (drivers/gpu/drm/drm_panel.c:82)
>>> drivers/gpu/drm/drm_panel.o:(drm_panel_add) in archive vmlinux.a
>>> referenced by drm_panel.c:82 (drivers/gpu/drm/drm_panel.c:82)
>>> drivers/gpu/drm/drm_panel.o:(drm_panel_add) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: drm_panel_put
>>> referenced by drm_panel.c:100 (drivers/gpu/drm/drm_panel.c:100)
>>> drivers/gpu/drm/drm_panel.o:(drm_panel_remove) in archive vmlinux.a
>>> referenced by drm_panel.c:100 (drivers/gpu/drm/drm_panel.c:100)
>>> drivers/gpu/drm/drm_panel.o:(drm_panel_remove) in archive vmlinux.a

--
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